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Novel drilling driver

A propeller and drilling technology, which is applied in drilling equipment, driving devices for drilling in wellbore, earth-moving drilling, etc., to achieve the effects of economic drilling, reducing well site area and improving drilling efficiency

Inactive Publication Date: 2014-04-16
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The electro-hydraulic composite pipe is connected to the centralizer located at the rear end of the driver

Method used

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing, protection scope of the present invention is not limited to the following:

[0017] Such as figure 1 , figure 2 As shown, the new drilling thruster includes an electro-hydraulic composite pipe 11 arranged at the rear end for circulating drilling fluid and communication power supply, a driver for driving the drilling thruster forward, and a driver arranged at the front end and connected sequentially. The driving motor 13, the vibrator 14 and the drill bit 15 are connected with a centralizer 12 at the front and rear ends of the driver, and the inside of the driver and the centralizer 12 are provided with the electro-hydraulic composite pipe 11 for the drilling fluid to flow through. The flow channel, the electro-hydraulic composite pipe 11 is connected to the centralizer 12 located at the rear end of the driver, the drive motor 13 is connected to the centralizer 12 located at...

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Abstract

The invention discloses a novel drilling driver comprising an electrohydraulic composite tube (11) at the rear end, a drive device used for driving the drilling driver to move forward, a drive motor (13), an exciter (14), and a drill bit (15). The drive motor (13), the exciter (14) and the drill bit (15) are fitly connected in sequence. Two centralizers (12) are connected to front and rear ends of the drive device respectively. The drive device and the centralizers (12) are all provided with inner passages communicated with the electrohydraulic composite tube (11) and allowing drilling fluid to pass. The drive device further comprises a passage B (2) allowing returning fluid to flow through. The novel drilling driver has the advantages that land drilling rigs or marine drilling platforms are no longer used together in the process of oil-gas well exploration and development, continuous drilling is done using the drilling driver, drilling fluid circulation and high-speed communication are achieved through the electrohydraulic composite tube, and safe, efficient and economic drilling is maximally achieved.

Description

technical field [0001] The invention relates to the technical field of exploration and drilling equipment, in particular to a novel drilling thruster. Background technique [0002] In recent years, changes in drilling requirements have promoted the rapid development of drilling equipment. Modularization and integration of drilling equipment, miniaturization of well site area, increasing area of ​​downhole controlled oil and gas layers, and less and less drilling waste discharge have become the development direction of future drilling. At present, exploration drilling is not only a large investment, but also a high risk. In order to fundamentally reduce the cost and risk of exploration drilling, it is necessary to abandon the current drilling method and develop a new drilling method. Rig-less drilling and simple automated drilling will completely change the current high-investment and high-risk exploration drilling methods. In 1999, Norway proposed a badger-type drilling c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/00E21B4/04
CPCE21B4/04
Inventor 刘清友任涛陈永华包凯
Owner SOUTHWEST PETROLEUM UNIV
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